As the Hulk, Dr. Banner’s intelligence is desperately misplaced and exchanged for animal savagery and brutality. Popularly theorized the Hulk is a physical manifestation of a dissociative identity disorder brought on by abuse and deep-rooted self-contempt, the curse of his condition is one Bruce tends to avoid. His own theories lost in the rejection of the Other Guy.
Caging himself away because of the potential danger the Other Guy is capable of, Bruce has multiple times